# #1c19a3

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#1c19a3`
- RGB: rgb(28, 25, 163)
- HSL: hsl(241, 73%, 37%)
- OKLCH: oklch(0.351 0.205 269.8)
- Relative luminance: 0.0359
- Nearest named color: Dark Galaxy (#0018a8, Δ 2.417) — https://brandsweets.com/colors/dark-galaxy
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1c19a3

## Tints & shades

- Tints (toward white): #201ebe, #2522d8, #3b38e0, #5553e4, #7472e9, #8e8ced, #a8a7f1, #c2c1f5, #dcdcf9, #f6f6fe
- Shades (toward black): #1a1796, #171584, #141377, #12116a, #100e5d, #0d0c4b, #0b0a3e, #080831, #05051f, #030312

## Harmonies

- Complementary: #a1a319
- Analogous: #195ca3, #6119a3
- Triadic: #a31c19, #19a31c
- Split-complementary: #a36119, #5ca319
- Tetradic: #a3195c, #a1a319, #19a361

## Colors that go with #1c19a3

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #1c19a3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 4 real palettes, including Procter & Gamble's brand system and Pfizer's brand system put Blue beside #1c19a3, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #1c19a3 in 6 real palettes, including Pepsi's brand system and Behance's brand system, as the supporting colour. Seen in: Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Behance (https://brandsweets.com/colors/brands/behance-net), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1c19a3: 4 real palettes, including Unilever's brand system and Warbyparker's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #1c19a3 in 7 real palettes, including Nivea's brand system and Discord's brand system, as the supporting colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Discord (https://brandsweets.com/colors/brands/discord), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/royalblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #1c19a3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #1c19a3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #1c19a3: 3 real palettes, including 3M's brand system and Nintendo's brand system, as the supporting colour. Seen in: 3M (https://brandsweets.com/colors/brands/3m-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/firebrick

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 12.23:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.72:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6765e7 (4.59:1); AA: background → #9e9e9e (4.56:1); AAA: text → #8e8ced (7.12:1); AAA: background → #c4c4c4 (7.01:1)

## Brands using this color

- **Tide** — secondary #13259c (Δ 1.937) — https://brandsweets.com/colors/brands/tide-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/1c19a3-a19cc4-df9b4e-261f2d-e9edf1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#1c19a3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.